P0089-64 (E8) Fuel Pressure Regulator Performance

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EdwardRRS

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Hi,

2016 Range Rover Sport Supercharged -85K miles- Out of Warranty.

Code using an IIDTool BT

P0089-64 (E8) Fuel Pressure Regulator Performance- Algorithm based failure-Signal Plausibility Failure.


Search on the Internet mentioned.


Might need to Update the PCM Software..How does one do that?

A Part might be bad. Which Part is bad?

Fuel Pump? Low Pressure or High Pressure Pump?

Sensor or Sensors?

Regulator?
 

joey

Custom Rover Accessories
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Any software updates with require either the dealership or a Land Rover Specific mechanic as they will need that lovely $10k computer to install the update.

Not sure what the error ends up being.
 

EdwardRRS

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The Check Engine Light disappeared for a day and a half and returned today. I overfilled the tank and it went away. When I hit 75%, the Check Engine Light reappears.
 

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